Freeze-dried ice cream, also known as astronaut ice cream, is a popular novelty treat that undergoes a specialized freeze-drying process. This method removes all moisture from the ice cream while preserving its taste and texture. The result is a crunchy, light, and shelf-stable ice cream that can be enjoyed without the need for refrigeration. With its unique texture and nostalgic appeal, freeze-dried ice cream is a favorite among space enthusiasts and dessert lovers alike.